Hiram joseph livergood



(No Model.)

H. J. LIVERGOOD.

MIDDLINGS PURFYING MACHINE.

Patented Sept. 4, 1888.

UNITED STATES ATnNT @einen VlgIlltAilI JOSEPH LIVERGOOD, OF BRANTFORD, ONTARIO, CANADA.

MIDDLINGS-PURIFYING MACHINE.

SPECIFICATION forming part of Letters Patent No. 389,091, datei September 4, 1888.

.\ pplicntion filed November 25, 1837. Serial No. 956,078. (No modell) To all whom it may concern:

Be it known that I, HIRAM JOSEPH Liven- GOOD, of the city of Brantford, in the county of Brant, in the Province of Ontario, Canada, have invented a new and useful Middlings-Purifying Machine, of which the following is a specification.

My invention relates to improvements in iniddlings-purifying machines in which a suction-fan and rotatory carriers or elevators operate in conjunction with vibrating tables, a separating-chamber, and a vibrating sieve.

The object of my improvement is to provide a mechanism by which pulverulent impurities and ine particles of bran and ber may be removed from the middlings without- Waste, and the Hour thus rendered pure and White. These impurities can onipT he removed by currents of air and before the middliugs come to the bolting-cloth for further separation. Il' they are not removed before by the current of air, they will pass through the bolt-cloth with the middlings. The presence of these particles in the flour gives it a darker shade and materially lowers its grade and value in the market. attain this object by the mechanism illustrated in the accompanyingdrawings, in which the same letters of reference indicate the same or corresponding` parts.

Figure l is a vertical longitudinal section of a machine embodying my invention. Fig. 2 is a top view as the machine appears after the removal of the air-chamber. Fig. 3 is a view of the eccentric which operates the vibrating tables. Fig. et is a view showing the spider with a bucket attached to each arm. Fig. 5 is a detail view showing the ends of separating-chamber and pitman-connection to the vibra-ting tables.

The object of this invent-ion is to improve the construction of the middlings-pnrier for which Letters Patent No. 266,296 were granted to me October 2t, 1882, so as to make it more effective in operation.

A is the frame ofthe machine. The top rails The separatingchamber S sits on the deck T. The air-chamber Csits ou the separatiiig-chamber S. "Within this separating chamber S are a series of inclined lattices, G, and a series of inclined detlector-boards arranged alternatclr Wit-h the lattices, and forming with them and the door T a series of approximately V-shapcd hoppers, P.

M is a shaft extending longitudinally ofthe separating-chamber S, to which are fastened the spider-arms O, traveling in the hoppersP P, each of which is provided with a liftingbucket, Q. at its outer end. These buckets are formed so as to have aside discharge, and as they rotate in close proximity to the lower edges of the dellector-boards H they each scoop up the material in one of the hoppers P and deliver it to the inclined shaking tables N, arranged a short distance above the tops of the delicctor-boards H, from whence the ma,- terial falls ou the next lattice G, and the operation is repeated. Each of these tables N is support-ed by a strip of band-iron, il, which extends through and a little Way beyond the sides of the separating-chamber S in notches cut for that purpose. To cach strip N2 is fastened one end of a pitman, Z, which is attached at the other end to a lever, L, pivoted in one side of the separating-chamber, as shown in Fig. 5. A bar, R, is attached to all the levers L, and is connected by a rod, J, to an eccentric, F, mounted on the fan-shaft X, so that the revolution of the latter imparts an end shake to the tables N.

I do not wish to confine myself to the above method of driving the tables N, for in place of the eccentric F on the fan-shaft X a pulley may be used, and in the place of the bar R a shaft mayr be used. In this latter case a belt would run down from the pulleY on the fanshaft to a pulley on the shaft on a quartertwist, and eccentrics would be used on the said shaft to give the tables N a lateral vibrating motion. Each pitman Z would then be connected to an eccentric on the said shaft at one end and to the band-iron N2 at the other end.

On one end of the separatingchamber S is located a feed-hopper provided with a feedroll, E, and connected with the other end is a fan-chamber provided with a fan, B, mounted on the shaft X. This shalt receives mot-ion from any suitable motor and communicates it IOC) to all the ymoving parts of the machine. By means of a pulley and a belt it drives the shaft U, which in turn drives the shaftM and feedroll E, the former by means of the bevel gear- Wheels U and the latter by a belt.

The operation of the machine is as follows: The revolution of the feed-roll E causes the middlings to feed out of the hopper. TheyT then fall in a thin sheet on the first inclined lattice G, and as they fall are struck by a current of air drawn in through the valves V, and thence through the first lattice G, which current of air carries off to the fan a portion of the light fluffy particles of bran and other inipurities. Vhen the middlings reach the bottom of the first interior hopper P, they are lifted up by the buckets Q and dropped onto the first shaking table N, Which by its motion delivers the middlings in a thin sheet to the second lattice G. This operation is repealed until the middlings have reached to the last hopper P, from whence they are delivered l through an opening in the deck T t-o the shaking separator D,to be operated on in the usual manuel'. Each of the valves V is independently adjustable, so that the force of the draft in different parts of the separating-chamber can be regulated.

I claiml. In a middlings-purifying machine, the combination of the separating-chamber S, the feed-hopper, the feed-roll E therein, the shaft M, the lifting-buckets Q, mounted ou said shaft, the inclined lattices G, and dedectorboards H, forming with the lattices G and floor T of the separating-chamber S the hoppers P, andthe fan B, substantially as described.

2. In a middlings-purifying machine, the combination of the separating-chamber having valvesV in its floor T, the shaft M, having spider-arms provided with lifting-buckets Q. secured thereon, the inclined lattices G, the inclined deflector-boards H, forming with latcombination of the separating-chamber, thev feed-hopper, the feed-roll therein, the shaft M, the spider-arms provided with thelifting-buckets Q, secured thereon, the inclined lattices G, the defiector-boards H, the shaking tables N,

and the fan B, substantially as described.

4. In a middlings-purifying machine, the combination of the separating-chamber provided with valves V in its floor T, the feedhopper, the feed-rollE, `iournaled therein, the inclined lattices G, the inclined detlectorboards H, forming With the said lattices G and floor T the approximately V-shaped hoppers P, the shaft M, journaled longitudinally of said separatingchamber, spider-arms O, secured to said shaft, the lifting-buckets Q, having a side delivery fastened to said arm, means for revolving said shaft, inclined shaking tables N, located above said defiector-boards H. and a fan, B, connected to the air-chamber C at the opposite end from the feed-hopper, substantially as described.

5. In a middlings-purifying machine, the combination of the separati ngchamber,the fan B at the rear end thereof, the shaft U, a feedhopper at the end of separating-chamber S opposite to the fan, a feed-roll, E, journaled therein, the shaft M, journaled longitudinally of the separating-chamber S, the lifting-buckets secured thereon, theinclined lattices G, the detlectorboards H, forming with the lattices G and oorT of the separating-chamber S the hoppers P, the inclined shaking tables N, the mechanism for operating the same, and gearing con necting the moving parts, substantially as specified. v

HIRAM JOSEPH LIVERGOOD.

Witnesses:

T. S. SHURsTER, W. T. CAMPBELL. 

